1. In order to beat, the heart requires A. nervous system input B. hormonal signalling C. generates its own pulse 2. Voluntary movement is controlled by the A. somatic system B. autonomic system 3. __________________ means producing a few offspring, with a lot of parental care provided. A. Protective reproduction B. Shotgun reproduction C. Sexual reproduction D. Asexual reproduction 4. Following injury, a scar may form within brain tissue by A. blood vessel cells B. astroglia C. injured neurons D. microglia 5. The central nervous system consists of the A. brain and spinal cord B. sensory neurons C. motor neurons D. sensory and motor neurons 6. Background regulatory systems like are toggled up by the A. sympathetic system B. parasympathetic system C. somatic system .